Patent US3611516A successfully refreshed from Google Patents.
US3611516A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mold case and vibrator assembly
Assignee: Ameron Inc
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Filing: 1968-05-27
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Granted: 1971-10-12
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Expires: 1988-05-27
Abstract
Abstract THE OUTER STEEL SHELL OR CASE OF A MOLD FOR CASING CONCRETE PIPE HAVING A GATE AND VIBRATORS MOUNTED ON THE GATE WITH THEIR AXES OF ROTATION NORMAL TO THE AXIS OF THE CASE AND OUTSIDE THE CASE.
Inventors
- 👤 James F O'conner
- 👤 Gordon J Black
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:17
CPC Classifications
B; B28; B28B; B28B21/00; B28B21/02; B28B21/10; B28B21/14; B28B21/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-10-11 | 1975-04-12 | 1975-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-11 | 1979-04-12 | 1979-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-11 | 1983-04-12 | 1983-10-12 | $7700.00 | Window Closed / Lapsed |